The teflon plastic is prepared by the polymerisation of
A. ethylene
B. acetylene
C. benzene
D. tetrafluoro ethylene
Answer: Option D
A. ethylene
B. acetylene
C. benzene
D. tetrafluoro ethylene
Answer: Option D
Traditional 'battery' contains which of the following chemicals?
A. Ethylene glycol
B. Sulphuric acid
C. Sodium bicarbonate
D. Ethanol
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